| Crash location | Unknown |
| Nearest city | Marana, AZ
32.436738°N, 111.225382°W |
| Tail number | N320MJ |
|---|---|
| Accident date | 20 Sep 1990 |
| Aircraft type | Boeing 707-321B |
| Additional details: | None |
IMPROPER PREFLIGHT PLANNING/PREPARATION BY THE PILOT, AND HIS FAILURE TO USE A CHECKLIST. FACTORS RELATED TO THE ACCIDENT WERE: THE FAA'S INADEQUATE SURVEILLANCE OF THE OPERATION, THE FAA'S INSUFFICIENT STANDARDS/REQUIREMENTS, THE PILOT'S OPERATION OF THE AIRCRAFT WITH KNOWN DEFICIENCES, AND HIS LACK OF RECENT EXPERIENCE IN THE TYPE OF AIRCRAFT.